BLUE TRAINIf you would like to schedule an in-person training for ATC-20 Postearthquake Safety Evaluation of Buildings (Second Edition), ATC-45 Safety Evaluation of Buildings after Windstorms and Floods, please click here for details and to submit a request for more information. 

 

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California Office

Applied Technology Council
201 Redwood Shores Parkway, Suite 240
Redwood City, California 94065

Telephone: (650) 595-1542
Facsimile: (650) 593-2320
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Applied Technology Council
1550 Wilson Blvd., Suite 700
Arlington, Virginia 22209

Telephone: (703) 351-5052
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Organization ATC Liaison
American Association for Wind Engineering (AAWE) David Prevatt
Australasian Wind Engineering Society (AWES) David Prevatt
Building Seismic Safety Council (BSSC)  
California Seismic Safety Commission (CSSC)  
Centre for Advanced Engineering at the University of Canterbury, Christchurch, New Zealand  
Consortium of Organizations for Strong Motion Observation Systems (COSMOS) Jon A. Heintz
Charles Pankow Foundation (CPF)  
Earthquake Engineering Research Institute (EERI)  
Federal Emergency Management Agency (FEMA)  
GeoHazards International (GHI)  
Insurance Institute for Business & Home Safety (IBHS) Anne Cope
Japan Structural Consultants Association (JSCA) Mitsuru Kawamura
MCEER  
National Council of Structural Engineers Associations (NCSEA) Thomas A. DiBlasi
Ryan A. Kersting
John O'Brien
Seth Thomas
National Institute of Standards and Technology (NIST)  
National Science Foundation (NSF)  
Natural Hazards Center  
New Zealand Society for Earthquake Engineering (NZSEE)  
Pacific Earthquake Engineering Research Center (PEER)  
QuakeCoRE Ken Elwood
Southern California Earthquake Center (SCEC)  
Structural Engineers Association of California (SEAOC) Krista Looza
Structural Engineers Association of Central California (SEAOCC) Christos Tokas
Structural Engineers Association of New York (SEAoNY) Ahmad Rahimian
Structural Engineers Association of Northern California (SEAONC) Kelly Cobeen
Structural Engineers Association of San Diego (SEAOSD) Jose Restrepo
Structural Engineers Association of Southern California (SEAOSC) Michael L. Cochran
Structural Engineering Institute of the American Society of Civil Engineers (SEI) Donald O. Dusenberry
U.S. Geological Survey (USGS)  
Western Council of Structural Engineers Associations (WCSEA)  

 

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Maria E. Moreyra Garlock, President
Princeton University
Princeton, New Jersey
(Term: 2020-2026) Appointed by the ATC Board

Kelly Cobeen, Vice President
Wiss, Janney, Elstner Associates
Emeryville, California
(Term: 2021-2027) Appointed by the Structural Engineers Association of Northern California


Seth Thomas, Secretary/Treasurer
KPFF Consulting Engineers
Portland, Oregon
(Term: 2022-2025) Appointed by the National Council of Structural Engineers Associations

David O. Prevatt, Past President
University of Florida
Gainesville, Florida
(Term: 2018-2025) Appointed by the ATC Board
Thomas A. DiBlasi, At Large Member of the Executive Committee
DiBlasi Associates, P.C.
Monroe, Connecticut
(Term: 2023-2026) Appointed by the National Council of Structural Engineers Associations


Melissa Burton
Arup
Toronto, Canada
(Term: 2019-2025) Appointed by the ATC Board

David Cocke
Structural Focus
Gardena, California
(Term: 2024-2027) Appointed by the Structural Engineers Association of Southern California

Negar Elhami-Khorasani
University at Buffalo
Buffalo, New York
(Term: 2023-2026) Appointed by the ATC Board

Elizabeth English
Waterloo Climate Institute
Ontario, Canada
(Term: 2024-2027) Appointed by the ATC Board

John Hooper
Magnusson Klemencic Associates
Seattle, Washington
(Term: 2024-2027) Appointed by the Structural Engineering Institute of the American Society of Civil Engineers

John O'Brien
PES Structural Engineers
Atlanta, Georgia
(Term: 2023-2026) Appointed by the National Council of Structural Engineers Associations

Ahmad Rahimian
WSP
New York, New York
(Term: 2021-2026) Appointed by the Structural Engineers Association of New York

Jose Restrepo
University of California, San Diego
San Diego, California
(Term: 2022-2025) Appointed by the Structural Engineers Association of San Diego

Elaina J. Sutley
University of Kansas
Lawrence, Kansas
(Term: 2024-2027) Appointed by the ATC Board

Christos Tokas
Office of Statewide Health Planning and Development (OSHPD)
Sacramento, California
(Term: 2019-2025) Appointed by the Structural Engineers Association of Central California

 

The following links direct to complete lists of former and current ATC Board Directors and Past Presidents.

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Delahay Degenkolb2 In 1989, ATC established the Henry J. Degenkolb Memorial Endowment Fund, named for a dedicated structural engineer ⎯ an international leader in the development of structural engineering technology ⎯ who gave outstanding technical support to the Applied Technology Council and its projects.

The James Merriam Delahay Endowment Fund was initiated in 2005 by the Structural Engineers Association of Alabama to honor the memory of Jim Delahay, a former ATC President, known nationwide for his work to improve wind codes and standards.

   Current Major Donors*

   Sponsors
  
Structural Engineers Association of California
   Computers & Structures, Inc.
   Degenkolb Engineers
   Charles H. Thornton
   Gilsanz Murray Steficek
   Walter P. Moore & Associates
   Rutherford & Chekene
   Nabih Youssef & Associates
   John M. Coil
   Edwin T. Huston
   James R. and Sharon K. Cagley
   Sang Whan Han
   KPFF Consulting Engineers
   Robert B. Paullus
   Rojahn-King Family

   Supporters
   Erleen Hatfield

   Contributors
   Omar D. Cardona

   Lawrence D. Reaveley
   John C. Theiss

   *As of March, 2019

 

ATC-45 

ATC-13-1

The purpose of the ATC Endowment Fund is to support projects of critical interest to structural engineering design practice, research, and education.

To donate to the ATC Endowment Fund, please click on the donate button, below.

  • Selected Engineering Applications for Mitigating the Effects of Natural and Man-Made Hazards. The ATC Endowment Fund provides partial support, sometimes in the form of seed money, to develop selected engineering applications for mitigating the effects of natural and man-made hazards.  Such activities are supported by the Fund when (1) funds cannot be obtained from traditional government agency funding sources in a timely manner and (2) the Endowment Committee believes the project is of critical importance in meeting the goals of ATC. Recommendations for projects in this category are initiated by the ATC Executive Director and require approval of the ATC Endowment Committee.  A portion of the proceeds from the sale of such engineering applications is returned to the ATC Endowment Fund.  To date, the Fund has supported the development of several engineering applications:
    • ATC Hazards by Location. The purpose of the ATC Hazards by Location website is to provide users with site-specific hazard information that can be used to determine design loads for buildings and other structures. 
    • ATC-45, Field Manual: Safety Evaluation of Buildings After Windstorms and Floods (published 2004, 132 pages)The ATC-45 Field Manual provides procedures applicable to all building types and includes extensive criteria for posting buildings with red (UNSAFE), yellow (RESTRICTED USE) and green (INSPECTED) placards as well as example applications of the procedures. Funding for the ATC-45 project was also provided by the Applied Technology Council and the Institute for Business and Home Safety.
    • ATC-13-1, Commentary on the Use of ATC-13 Earthquake Damage Evaluation Data for Probable Maximum Loss Studies of California Buildings (published 2002, 66 pages). The purpose of this Commentary is to provide guidance to consulting firms who are using ATC-13 expert-opinion data (published by ATC in 1985) for probable maximum loss (PML) studies of California buildings. This report explains the development of the ATC-13 expert-opinion estimates of physical damage caused by earthquakes, the limitations of the ATC-13 data, and the issues associated with using the data for PML studies. 
    • ATC-20 Bhutan Field Manual, Postearthquake Safety Evaluation of Buildings, Bhutan Edition (published 2015, 246 pages). This document represents adaptations to the U.S. version of the ATC-20-1 Field Manual  to account for Bhutan’s vernacular buildings, as well as Bhutan’s cultural and governmental context. During the development, a number of improvements were made to the presentation of material in the ATC-20-1 Field Manual, including a graphical format with numerous images to help engineers evaluate damaged buildings more accurately. Also, the procedures incorporate recent lessons learned during postearthquake safety evaluations following the Chile (2010) and New Zealand (2010-2011) earthquakes.
    • ATC-109Building Safety Evaluation after the February 22, 2011 Christchurch, New Zealand Earthquake: Observations by the ATC Reconnaissance Team (published 2014, 99 pages). The purpose of this report is to summarize the reconnaissance team's observations, findings, and recommendations regarding postearthquake building safety evaluations following the February 22, 2011 earthquake in Christchurch, New Zealand.
    • ATC-128Proceedings of Forum on Performance-Based Structural-Fire Engineering: Examples of Current Practice and Discussion of Future Directions (published 2015, 101 pages). The purpose of this report is to document how designers and researchers in the United Kingdom are advancing the state-of-the-practice in structural fire engineering, and to examine critical issues in structural-fire safety that merit closer attention in the United States.
    • ATC-141September 19, 2017 Puebla-Morelos, Mexico Earthquake: Seismological and Structural Observations by the ATC Reconnaissance Team (published 2020, 571 pages). The purpose of this report is to document the findings of the field team who were deployed following the magnitude-7.1 Puebla-Morelos, Mexico earthquake, and includes observation of earthquake effects for 70 buildings, microtremors recorded using monitoring instruments at 7 buildings, and a compilation of processed ground motion recordings from UNAM (National Autonomous University of Mexico) and CIRES (Center of Instrumentation and Seismic Records).
  • ATC Design Guides. ATC Design Guides are a series of reports that present succinct, state-of-the-art information on important design issues for the practicing structural engineering profession.  The documents are developed by leading specialists in specific areas of concern, working under the review and guidance of an advisory Project Engineering Panel. Topics are selected by the ATC Board of Directors, based on recommendations from ATC staff.  A portion of the proceeds from the sale of ATC Design Guides is returned to the ATC Endowment Fund.  To date, ATC has published three ATC Design Guides:
    • ATC Design Guide 1, Minimizing Floor Vibration (published 1999, 64 pages)This first ATC Design Guide provides guidance on design and retrofit of floor structures to limit transient vibrations to acceptable levels. The document includes guidance for estimating floor vibration properties and includes example calculations for a variety of currently used floor types and designs. The criteria for acceptable levels of floor vibration are based on human sensitivity to the vibration, whether it is caused by human behavior or machinery in the structure.
    • ATC Design Guide 2, Basic Wind Engineering for Low Rise Buildings (published 2009, 114 pages)This second ATC Design Guide provides background information and guidance on wind engineering provisions for low-rise buildings contained in ASCE 7 -05, Minimum Design Loads for Buildings and Other Structures, and the 2009 International Building Code (IBC). Treatment is limited to common building types and buildings under 60 feet in ATC Design Guide 2, Second Edition, which provides guidance on the ASCE 7-10 and the 2012 IBC wind engineering provisions for low-rise buildings, is currently under development.
    • ATC Design Guide 3, Serviceability Design of Tall Buildings Under Wind Loads (published 2019, 75 pages). This third ATC Design Guide provides background and recommended criteria for the serviceability design of tall buildings subject to wind loading, based on available research, engineering practice, and successful buildings currently in service. Recommended serviceability limit states on perception of motion and lateral deflection are provided for the design of tall buildings under wind loads.

  • Small Research Projects. To qualify for funding as a small research project, the research must yield results that are useful to a significant segment of the structural engineering profession and must be accomplished with funding not to exceed $10,000 (1995 dollars).  Research topics are solicited from Structural Engineers Associations nationwide and are approved by the ATC Executive and Endowment Committees.  Guidance and overview are provided by advisory Project Engineering Panels, consisting of leading specialists from the structural engineering profession and from the academic community.  A portion of the proceeds from the sale of small research project reports is returned to the ATC Endowment Fund.  To date, ATC has completed one Small Research Project:
    • ATC-R-1, Cyclic Testing of Narrow Plywood Shear Walls (published 1995, 64 pages)This small research project, conducted at the University of California at Irvine, consisted of a series of static and dynamic tests of narrow plywood wall panels.  The ATC-R-1 report describes the testing program and summarizes the results, including comparisons of drift ratios found during testing with those specified in the then-current seismic provisions of the 1991 Uniform Building Code.  The report served as a catalyst for changes in code-specified aspect ratios for narrow plywood wall panels and for new thinking in the design of hold-down devices.



ATC Design Guide 1

 

 

ATC Design Guide 2

 

000 ATC DG3 Cover 2021 bordered

ATC Design Guide 3

Persons interested in donating to the ATC Endowment Fund can do so by contacting ATC.

Applied Technology Council is a California corporation exempt from federal and state income taxes under Section 501(c)(3) of the Internal Revenue Code. Donations to the ATC Endowment Fund may be tax deductible. (Consult your tax advisor.) Applied Technology Council’s tax identification number is 23-7231360.

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Dear Visitor:

Welcome to the Applied Technology Council (ATC) website! 

In this the 42nd year of ATC, we are busier than ever on a broad range of projects and activities to develop state-of-the-art structural engineering applications and resources for mitigating the effects of natural and other hazards on the built environment.  All of our projects are being carried out by leading design practitioners and researchers from around the nation (all engaged as consultants to ATC, or our joint venture partner), with fund raising, management, quality control, and contract administration the responsibility of ATC’s very capable staff of executive managers, technical and administrative staff, and IT professionals.  Routinely the ATC Board of Directors meets to monitor our activities, update policies, and provide valuable input about practitioner needs and desirable new directions.

Most of our projects address compelling problems in earthquake engineering, but we are also developing an important portfolio of wind and coast engineering projects and products, including (1) the ATC “Windspeed by Location” website (see menu item above); and (2) the impending update of the ATC Design Guide 2:  Basic Wind Engineering for Low-Rise Buildings.

Funding Sources and Partners.  ATC is extremely grateful for funding provided by our two principal clients—the Federal Emergency Management Agency (FEMA) and the National Institute of Standards and Technology (NIST), and other clients including the California Earthquake Authority (CEA), the Department of Building Inspection, City and County of San Francisco, and the U. S. Geological Survey (USGS).  We are also thankful for funding previously provided by other funding sources, including:  city agencies such as the Los Angeles Department of Building and Safety; the Charles Pankow Foundation; the Institute for Building and Home Safety; and the ATC Endowment Fund.  Historically, we have also conducted projects for other Federal Agencies, including the Department of Housing and Urban Development (HUD), the Federal Highway Administration (FHWA), the National Science Foundation (NSF), the U. S. Postal Service (USPS).

Our FEMA work is being carried out under two major contracts:  (1) a series of 5-year contracts to develop Next-Generation Performance-Based Seismic Design Guidelines for New and Existing Buildings; and (2) a Seismic and Multi-Hazard Technical Guidance Development and Support Contract, under which we are conducting a broad range of task order projects in earthquake engineering. 

Our NIST work is being conducted to assist NIST in carrying out a problem-focused research and development program in earthquake engineering, the roadmap for which was provided in the ATC-57 Report, The Missing Piece: Improving Seismic Design and Construction Practices (published by ATC in 2003).

New Products.  During the last 12 months, ATC has completed and/or released a broad range of products for use by design practitioners, inspectors, and regulators in earthquake and wind engineering.  These include:

  • Three documents in the ATC-50 Series:  (1) the ATC-50 Report, Simplified Seismic Assessment of Detached, Single-Family, Wood-Frame Dwellings; (2) the ATC-50-1 Report, Seismic Rehabilitation Guidelines for Detached, Single-Family, Wood-Frame Dwellings; and (3) the ATC-50-2 Report, Simplified Seismic Assessment of Detached, Single-Family, Wood-Frame Dwellings;
  • Six reports in the ATC-52-2 Series, Here Today—Here Tomorrow:  The Road to Earthquake Resilience in San Francisco, which document results from the recently completed Community Action Plan for Seismic Safety (CAPSS), City and County of San Francisco (to be released in 2011);
  • Numerous FEMA reports, including (1) FEMA E-74, Reducing the Risks of Nonstructural Earthquake Damage; A Practical Guide, Fourth Edition, prepared under the ATC-69-1 Project; (2) the FEMA 455 Report, Handbook for Rapid Visual Screening of Buildings to Evaluate Terrorism Risk, developed under the ATC-65 Project; and (3) the FEMA P-695 Report, Quantification of Building Seismic Performance Factors, prepared under the ATC-63 Project;
  • The final report in the 3-part FEMA-funded ATC-71 Report Series, NEHRP Workshop on Meeting the Challenges of Existing Buildings, Part 3: Action Plan for the FEMA Existing Buildings Program (downloadable from this website, along with Part 1: Workshop Proceedings, published in 2008, and Part 2: Status Report on Seismic Evaluation and Rehabilitation of Existing Buildings, published in 2009) ;
  • Numerous reports for NIST prepared by the NEHRP Consultants Joint Venture (a partnership of ATC and CUREE), including four Guides for Practicing Engineers:  (1) NEHRP Seismic Design Technical Brief No. 1, Seismic Design of Reinforced Concrete Moment Frames; (2) NEHRP Seismic Design Technical Brief No. 2, Seismic Design of Steel Special Moment Frames; (3) NEHRP Seismic Design Technical Brief No. 3, Seismic Design of Cast-in-Place Concrete Diaphragms, Chords, and Collectors; and (4) NEHRP Seismic Design Technical Brief No. 4, Nonlinear Structural Analysis for Seismic Design; and
  • ATC Design Guide 2:  Basic Wind Engineering for Low-Rise Buildings, which was completed in 2009 and released in 2010.

Ongoing Projects.  ATC is currently involved in a broad range of projects funded by our current clients and other sources.  Information about most of those projects is available elsewhere on this website (see “Projects” menu item above).

Current major projects include:

  • The FEMA-funded ATC-58-2 Project, under which ATC is developing next-generation performance-based seismic design criteria for new and existing buildings (scheduled to be completed in 2014);
  • Ten major projects under ATC’s second 5-year FEMA-funded Seismic and Multi-Hazard Technical Guidance Development and Support Task Order Contract; and
  • More than a dozen major projects for the National Institute of Standards and Technology (NIST).

ATC is also heavily involved in the planning for a major event in 2015:

Board Activities.  The ATC Board of Directors, which is composed of leading design professionals and researchers from around the nation (see “Board of Directors” section under “About ATC”, this website) continues to be heavily involved in contemplating and formulating future directions for ATC.  Board meetings scheduled for the 2014-15 year include:  (1) a meeting in Santa Fe, New Mexico; (2) a meeting in Reno, Nevada, hosted by the University of Nevada, Reno (UNR), and includes visits to a private shake table testing facility and a tour of the UNR earthquake engineering laboratory; (3) a meeting in London, England, hosted by Erleen Hatfield, a Board member representing the Structural Engineers Association of New York; collaboration with iStructE and workshops prior to the meeting will be planned; and (4) the Annual and Organizational Board meetings in the San Francisco Bay area. 

Current initiatives include (1) developing recommendations on more rapidly advising the community about the availability of ATC products (through webinars and other means); (2) making practitioners east of the Rocky Mountains more aware of ATC and its capabilities and products; (3) discussion on how ATC might improve and expand the application of its current repertoire of products; and (4) identifying other means to make the organization more effective in reducing the impacts of natural and manmade disasters.

New Initiatives and New Directions.  With the help of a committed and highly innovative Board of Directors and a dedicated, hard working staff, we are poised to continue providing the products and events of relevance and interest to structural engineers nationwide.  We look forward to your continuing visits to our web site, to your perusal and acquisition of our products, and to your participation in future ATC events. 

Thanks for visiting!

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 Welcome to the ATC Team!

Valley Mike cropMichael Valley As a former Principal at Magnusson Klemencic Associates in Seattle, Mike Valley comes to ATC with more than 30 years of structural engineering experience in new design, evaluation and retrofit of existing buildings, applied research, and codes and standards development. Mike’s design experience includes the landmark Salesforce Tower in San Francisco, and his research and development experience includes the FEMA 356 Prestandard and Commentary for the Seismic Rehabilitation of Buildings, FEMA P-2012 Assessing Seismic Performance of Buildings with Configuration Irregularities (ATC-123 Project), and NIST GCR 10-917-9 Applicability of Nonlinear Multiple-Degree-of-Freedom Modeling for Design (ATC-76-6 Project).

Mike also has extensive experience as an ATC consultant serving as a reviewer, a technical contributor, and Project Director on multiple ATC projects. We look forward to how Mike’s unique experiences as a successful team member will contribute to ATC projects in the future.

Michael Mahoney
Michael Mahoney

Retired from federal service as a Senior Geophysicist with the Federal Emergency Management Agency (FEMA), Mike Mahoney comes to ATC with more than 30 years of experience in hazard mitigation program management and policy development, post-disaster response and recovery, and problem-focused research and development in support of FEMA’s efforts under the National Earthquake Hazards Reduction Program (NEHRP). He has led FEMA’s earthquake-related work with the International Code Council and has been involved with the development of national model codes and standards since 1984.

In his career at FEMA, Mike has led the development of countless major FEMA publications, including: FEMA 350 Recommended Seismic Design Criteria for New Steel Moment-Frame Buildings and its series of companion reports (ATC-41 Project series), FEMA P-58 Seismic Performance Assessment of Buildings, Methodology and Implementation (ATC-58 Project series), FEMA P-695 Quantification of Building Seismic Performance Factors (ATC-63 Project), FEMA P-2018 Seismic Evaluation of Older Concrete Buildings for Collapse Potential (ATC-78 Project), and FEMA P-2090/NIST SP-1254 Recommended Options for Improving the Built Environment for Post-Earthquake Reoccupancy and Functional Recovery Time (ATC-137 Project). With Mike’s extensive knowledge of federal government programs, and past collaboration with state and local agencies, hazard mitigation partners, and code development organizations, we look forward to how his unique experiences will help serve ATC’s client needs and objectives in the future.